ANTARCTICA AS A CENTER OF ORIGIN OF BIRDS
With the rapid evolution of reptilian forms during Triassic and Jurassic times, many reptilo-avian forms may have evolved. Two examples of such evolution have been preserved in the Jurassic sediments of Germany (Archaeopteryx and Archaeornis). An anatomical feature, characteristic of birds, and not...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.618.3965 |